Thanks appa.

My question is: if the setup works with two ports, how come it stops working when the ports are switched?

Anyway, my config:


proxy_cache_path /dev/shm/proxy_cache levels=1:2 keys_zone=proxyone:10m inactive=10m max_size=100m;
proxy_cache_key "$scheme$host$request_uri$cookie___user";

proxy_cache proxyone;
proxy_cache_min_uses 1;
proxy_cache_valid any 60s;
proxy_cache_valid 404 0s;
proxy_cache_valid 500 502 503 504 1s;


#>>>>>>>>>>>>>>>>>>>>>>>>>>>>> SERVER BLOCK >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
server
{
listen 77.12.16.8:89;
server_name mydomain.com www.mydomain.com;

root /home/mydomain/public_html;
index index index.php index.html;

error_page 403 = @backend;
error_page 404 = @backend;
error_page 406 = @backend;
error_page 500 = @backend;

location / {
location ~.*\.(gif|jpg|png|ico|swf|rss|xml|htm|txt|js|css|gz|doc|xls|pdf)$ {
expires max;
try_files $uri @backend;
log_not_found off;
}
proxy_pass http://77.12.16.8:80;
include proxy.inc;
}

location @backend {
internal;
proxy_pass http://77.12.16.8:80;
include proxy.inc;
}

} # End of server block






And in Apache:





### RPAF STUFF FOR NGINX PROXYING
LoadModule rpaf_module modules/mod_rpaf-2.0.so
RPAFenable On
RPAFproxy_ips 127.0.0.1 77.12.16.8
RPAFsethostname On
RPAFheader X-Real-IP